__NOTOC__ Anderson Greenwood Crosby is a US manufacturing company that produces valves for industrial processes, including pressure relief and tank protection valves. The firm was established as Anderson Greenwood in 1947 in

Houston, Texas Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...

by Marvin Greenwood, Ben Anderson, and Lomis Slaughter Jr to produce a light aircraft, the AG-14. This project never made it past the prototyping stage, but involvement in a missile project soon thereafter saw the firm focus on valve design. In the 1970s, the firm owned the

Bellanca AviaBellanca Aircraft Corporation was an American aircraft design and manufacturing company. Prior to 1983, it was known as the Bellanca Aircraft Company. The company was founded in 1927 by Giuseppe Mario Bellanca, although it was preceded by ...

name for a while, and during this time attempted to market a new light plane design as the Bellanca Aries, but was short lived with only 4 being sold. It was purchased in 1986 by

Keystone International Keystone or key-stone may refer to: * Keystone (architecture), a central stone or other piece at the apex of an arch or vault * Keystone (cask), a fitting used in ale casks Companies * Keystone Law, a full-service law firm * Digital Keystone, a ...

, in turn acquired by Tyco Flow Control in 1997, with Anderson Greenwood being maintained as a subsidiary. It was subsequently merged with Crosby, another Tyco acquisition.

References

* {{cite book , last= Gunston , first= Bill , title=World Encyclopedia of Aircraft Manufacturers , year=1993 , publisher=Naval Institute Press , location= Annapolis
Company website
* ''International Directory of Company Histories'', Vol. 11. St. James Press, 1995. Manufacturing companies based in Houston Defunct aircraft manufacturers of the United States Defunct companies based in Texas